CN201351275Y - New combined string type wellhead platform on sea - Google Patents
New combined string type wellhead platform on sea Download PDFInfo
- Publication number
- CN201351275Y CN201351275Y CNU2008201430789U CN200820143078U CN201351275Y CN 201351275 Y CN201351275 Y CN 201351275Y CN U2008201430789 U CNU2008201430789 U CN U2008201430789U CN 200820143078 U CN200820143078 U CN 200820143078U CN 201351275 Y CN201351275 Y CN 201351275Y
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- combined string
- combined
- string
- deck structure
- wellhead platform
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Abstract
The utility model relates to a new combined string type wellhead platform on sea, consisting of a cylinder type base 3, a combined string 1 and a deck structure 2. The utility model is characterized in that in the combined string, six steel tubes surround the center of the cylinder base and are arranged evenly in a plum blossom shape, wherein the cylinder type base is a single cylinder base. The upper end of the combined string is connected with and supports the deck structure, and the lower end penetrates through the top of the cylinder and extends to the bottom of the cylinder base; the top layer of the deck structure is provided with a hole corresponding to the combined string, thus facilitating the installation and the maintenance in the future. The combined string is internally provided with a waterproof cannula; grouting is arranged between the combined string and the waterproof cannula for fixing, and the quantity of the grouting is depended on the quantity of the wellhead. The utility model has the advantages that the combined string is fixed with the waterproof cannula by the grouting, thus strengthening the whole rigidity of the pipe pillar, giving full play to the double function of the waterproof cannula as a pile, effectively decreasing the amount of the steel material and decreasing the ice loading.
Description
Technical field
The utility model relates to a kind of platform structure of offshore oil field development, especially can adapt to the wellhead platform by combined string support deck structure of small oil field exploitation.
Background technology
At present, known offshore wellhead platform has multiple pattern, and they are mainly distinguished mutually with basic pattern (pile foundation, tube base), column pattern (tubing string, barrel shell post) and the difference of number thereof.As many multicolumns and many open side type platforms are arranged in bucket foundation wellhead platform type, " the bucket foundation plate and shell structure self-mounting type offshore platform " of Tianjin NOED company exploitation (patent application number 01109911.9) promptly belongs to many open side type platforms, its element of construction comprises that bucket foundation, tube top buoyancy tank, gin pole are plate and shell structure, and its gin pole is the variable cross-section barrel shell structure that a top buoyancy tank central authorities is fixed in the lower end.This variable cross-section barrel shell gin pole can be suitable for the marine site, ice formation and use with the protection of well head waterproof casing within barrel mast.Owing to be subjected to the restriction of barrel mast sectional dimension, under the condition that guarantees adjacent waterproof casing minimum spacing, the quantity of the waterproof casing of being arranged is restricted, and in order to arrange a fairly large number of waterproof casing, just needs to increase the barrel mast diameter.Therefore in general, the pillar construction of this wellhead platform is comparatively complicated, and diameter of section is bigger, and not only rolled steel dosage is more, and ice loading is bigger.
Summary of the invention
In order to solve the more and bigger problem of ice loading of rolled steel dosage that existing open side type wellhead platform causes greatly owing to the barrel mast diameter of section, the utility model provides a kind of new multiple tubular pile type offshore wellhead platform.This wellhead platform replaces variable cross-section barrel shell column with combined string, and the diameter of section summation is less, and not only rolled steel dosage is less, and ice loading is less.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of new multiple tubular pile type offshore wellhead platform is made up of bucket foundation, combined type tubing string and deck structure, it is characterized in that said combined type tubing string is centered on the basic center of tube and is the uniform layout of plum blossom shape by six roots of sensation steel pipe.Bucket foundation is the monotubular base.The combined string upper end connects and the support deck structure, and the lower end is passed the tube top and extended to a basal part.And be provided with and the combined string corresponding aperture, so that the I﹠M of oil pipe in the future at the deck structure top layer.Can arrange waterproof casing in the combined string, grouted solid between combined string and the waterproof casing can be arranged 4-6 well head in the combined string.
The beneficial effects of the utility model are: the combined string utilization is connected with the grouted solid of waterproof casing, has increased the integral rigidity of tubing string, has given full play to waterproof casing again as the double duty of stake, has effectively reduced rolled steel dosage, and has reduced ice loading.
Description of drawings
Be described further below in conjunction with drawings and Examples.
Fig. 1 is an elevation of the present utility model;
Fig. 2 is the vertical view of the utility model deck structure;
Fig. 3 a, Fig. 3 b, Fig. 3 c are the vertical view of the utility model bottom, middle level, upper strata syndeton;
Wherein: the 1-combined string; The 2-deck structure; 3-tube base; The 4-syndeton; The 5-water surface; 6-mud face.
The specific embodiment
As shown in Figure 1, new multiple tubular pile type offshore wellhead platform is made up of bucket foundation 3, combined string 1 and deck structure 2.Wherein bucket foundation is a major diameter monotubular 3.New combined type tubing string 1 is centered on the basic center of tube and is the uniform layout of plum blossom shape by six roots of sensation steel pipe.Combined string 1 upper end connects and support deck structure 2, and the lower end is passed the tube top and extended to basic 3 bottoms of tube.And be provided with and combined string 1 corresponding aperture at deck structure 2 top layers, so that oil pipe is installed.The seabed is put on the crane barge basis, bottom of slinging, after forming initial sealing, tube base 3 draws water, make it the injection seabed, after the basis, bottom installs, carry out the piling work of waterproof casing, the operation of being in the milk after finishing makes that the combined string 1 on waterproof casing and basis, bottom is fixed to be one, carries out the installation of deck structure 3 at last.
Claims (4)
1. a new multiple tubular pile type offshore wellhead platform is made up of bucket foundation, combined type tubing string and deck structure, it is characterized in that said combined type tubing string is centered on the basic center of tube and is the uniform layout of plum blossom shape by six roots of sensation steel pipe.
2. according to the described new multiple tubular pile type offshore wellhead platform of claim 1, it is characterized in that: said bucket foundation comprises one or several base.
3. according to the described new multiple tubular pile type offshore wellhead platform of claim 1, it is characterized in that: said combined string upper end is connected in deck structure, the lower end is passed the tube top and is extended to a basal part, and be provided with and the combined string corresponding aperture, so that the I﹠M of oil pipe in the future at the deck structure top layer.
4. according to the described new multiple tubular pile type offshore wellhead platform of claim 1, it is characterized in that: can arrange waterproof casing in the said combined string, grouted solid between combined string and the waterproof casing can be arranged 4-6 well head in the combined string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201430789U CN201351275Y (en) | 2008-11-14 | 2008-11-14 | New combined string type wellhead platform on sea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201430789U CN201351275Y (en) | 2008-11-14 | 2008-11-14 | New combined string type wellhead platform on sea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351275Y true CN201351275Y (en) | 2009-11-25 |
Family
ID=41374662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201430789U Expired - Lifetime CN201351275Y (en) | 2008-11-14 | 2008-11-14 | New combined string type wellhead platform on sea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351275Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482036A (en) * | 2013-10-12 | 2014-01-01 | 惠生（南通）重工有限公司 | Buoyancy tower type ocean platform |
| CN105460175A (en) * | 2015-11-17 | 2016-04-06 | 天津大学 | Single-column platform in type of sinking to bottom of shallow water |
-
2008
- 2008-11-14 CN CNU2008201430789U patent/CN201351275Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482036A (en) * | 2013-10-12 | 2014-01-01 | 惠生（南通）重工有限公司 | Buoyancy tower type ocean platform |
| CN105460175A (en) * | 2015-11-17 | 2016-04-06 | 天津大学 | Single-column platform in type of sinking to bottom of shallow water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Free format text: FORMER NAME: HAIWANGXING OCEAN ENGINEERING TECHNOLOGY CO., LTD, TIANJIN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300384 Tianjin City, Nankai District Huayuan Industrial Park Road No. 1 Industrial Park E block six layer Patentee after: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Address before: 300384 Tianjin City, Nankai District Huayuan Industrial Park Road No. 1 Industrial Park E block six layer Patentee before: Haiwangxing Ocean Engineering Technology Co., Ltd, Tianjin City |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |
|
| CX01 | Expiry of patent term |